No,I have no x1 and x2 values.








At 2013-01-04 17:32:24,"PIKAL Petr" <petr.pikal@precheza.cz> wrote:
>Hi
>
>> -----Original Message-----
>> From: r-help-bounces@r-project.org [mailto:r-help-bounces@r-
>> project.org] On Behalf Of meng
>> Sent: Friday, January 04, 2013 8:00 AM
>> To: R help
>> Subject: [R] a question about the computation of expression
>> 
>> Hi all:
>> I have a question about the computation of expression:
>> y = 1+(2x1+2)-3*(5x1-1)+(3x2+3)-2*(x2-1)
>> 
>> The result of y is:
>> y = 11-13x1+x2
>> 
>> How can I compute the result of y via R function?
>
>Dou you have x1 and x2? If yes and they are vectors with the same length
>
>y = 11-13*x1+x2
>
>shall do the computation.
>
>Or maybe I did not understand what do you want.
>
>Regards
>Petr
>
>> 
>> Many thanks!
>> 
>> My best.
>> 
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>> 
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